23 Cosmo Avenue York YO31 0SU

1. 27 Oct 2026

   Validated

   Checked as complete and ready for consideration.

2. 2 Nov 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 22 December 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   York took a median of 58 days over the applications it decided in the last year.

This application is with York for determination, against a statutory target of eight weeks. Over the last year York decided lawful development applications in a median of 57 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 10 Cosmo Avenue York YO31 0SU

  24/01515/FUL Submitted 23 Aug 2024 50 yards away

  Single storey rear extension following demolition of conservatory

  Granted Full applications Extension Demolition 9 docs
  Small domestic

• 98 Fourth Avenue York YO31 0ST

  23/00927/FUL Submitted 9 May 2023 50 yards away

  Erection of detached annexe to rear following demolition of garage

  Granted Full applications Demolition 3 docs

• 8 Starkey Crescent York YO31 0SY

  AOD/12/00257 Submitted 3 Oct 2012 100 yards away

  Condition 3 (external materials), condition 6 (landscaping scheme), condition 7 (provision of public open space) and condition 10 (details of foul and surface water drainage) 12/01080/FUL

  Granted Conditions 7 docs

• 2 Starkey Crescent York YO31 0SY

  AOD/12/00168 Submitted 13 Jul 2012 100 yards away

  Condition 5 (details of cycle parking areas and all means of enclosure) (12/01719/FUL)

  Granted Conditions

• 6 Starkey Crescent York YO31 0SY

  AOD/17/00158 Submitted 22 May 2017 100 yards away

  Conditions 4, 7, 8 and 10 - 16/02493/FUL

  Split decision Conditions 6 docs

• 2 Starkey Crescent York YO31 0SY

  AOD/13/00309 Submitted 4 Jul 2013 100 yards away

  Conditions 1 and 2 (time and plans conditions) condition 3 (management plan, property maintenance) 12/03026/FUL

  Granted Conditions

• 26/01741/CLU Awaiting decision

  Paul Stride 20 Kathryn Avenue Huntington York YO32 9JS

  Certificate of lawfulness for the use that the commercial unit falls under Class E

  Lawful development
• 26/01804/CLU Awaiting decision

  25 Temple Avenue York YO10 3RS

  Certificate of lawfulness for use as House in Multiple Occupation (use class C4) for up to 6no. occupants

  Lawful development
• 26/01790/CLU Awaiting decision

  99 Thief Lane York YO10 3HT

  Certificate of lawfulness for use as House in Multiple Occupation (use class C4) for up to 6no. occupants

  Received 2 Oct, published by the council 11 Oct 2026 Lawful development
• 26/01748/CLU Awaiting decision

  89 Moor Lane Acomb York YO24 2QX

  Certificate of lawfulness for the use of land to the south and west of dwelling for domestic and recreational purposes (use Class C3)

  Lawful development
• 26/01420/CLU Refused

  40 Milton Street York YO10 3EP

  Certificate of lawfulness for use as short term holiday let (Use Class C3)

  25 Sep 2026 Lawful development